设
、
为双曲线
的两焦点,P为双曲线上的一点,且
,则
的面积为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d49e09b17b19d7c787e95bcf1e9731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df44ca8a2848775c266c9dce3f9b2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
20-21高二下·上海宝山·期末 查看更多[5]
上海市宝山区2020-2021学年高二下学期期末数学试题(已下线)2.3 双曲线(提高练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)3.2.1 (整合练)双曲线及其标准方程-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)(已下线)3.2 双曲线-2021-2022学年高二数学尖子生同步培优题典(人教A版2019选择性必修第一册)(已下线)3.2.1 双曲线及其标准方程(精练)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)
更新时间:2021-08-09 19:35:38
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解题方法
【推荐1】已知
,
分别是双曲线C:
的左、右焦点,过点
的直线与双曲线C的右支交于P,Q两点,且
.若
,则双曲线C的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
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【推荐2】已知双曲线
的焦距为
,
为
上一点,则
的渐近线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0d90b0b275bc85b16a918a3dc697fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
【推荐1】已知
、
是双曲线
的左右焦点,过
作
的一条渐近线的垂线,垂足为
,且
的面积为
(
为双曲线
的半焦距),则
的渐近线方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
【推荐2】已知一族双曲线
(
且
),设直线
与
在第一象限内的交点为
,点
在
的两条渐近线上的射影分别为
、
,记
的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96f7cec2e6acd07dfa442ddf67a4f49.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91076a1f4e2cf6d50ead05c0a7701f4.png)
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